on Jane Friedman site:

As writers, we often long for the perfect guide to where we should submit our writing. We want a resource that is dependable, consistent, and navigable. The publishing landscape is complicated! Especially when we are first starting out, we need someone to distill that publishing landscape for us.

But it can be difficult to find a resource that will give you everything you need. Some resources provide a ranking system, organizing publication venues into an ordered list. Others use tags and categories to enable the use of search criteria. When submitting, the closest we can get to “perfect” is assembling a personal combination of these lists, depending on our own publication goals.